N360 Keeps showing up

Had Norton 360 installed many years ago. Upgraded to Norton 1, then to Norton Internet Security with Backup.

Now am finding a file N360_BACKUP. Delete it. Couple days later it reappears.  Cleared it completely from 3 other computers but for some reason it doesn't want to leave this one.

This is what I found while digging around today.

OS (C:)  

Program Files (x86)

                                NortonInstaller

                                                       (folder)   {0C55C096-0F1D-4F28-AAA2-85EF591126E7}

                                                                             (folder)  N360

                                                                                                      install.dat

                                                       (file??)    N360_mini_E4F0789591F6434D97392E56384F709A

                                                       (file??)    N3604B59BED977534758B546FCFA807977A9

 

So, the question is, can I delete these???

There is nothing in Programs Window showing N360, so cannot uninstall.

Windows 7 Home Premium is the OS